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1968 Yamaha DT-1 on display at Yamaha Communication Plaza

YAMAHA

DT-1

Yamaha DT-1

Manufacturer
YAMAHA
Model
DT-1
Year
1968
Type
Trail
Origin
Japan
Photo: Rainmaker47 / CC BY-SA 4.0

01 — Overview

Introduced in 1968, the DT-1 established what Yamaha calls the "trail bike" category at a time when on-road and off-road machines were not clearly distinguished. It was equipped for off-road use, with what was then the longest-stroke front fork on any Japanese model, block-pattern tyres and an engine guard. Engine: air-cooled 246 cm³ two-stroke single.

MAKER
YAMAHA
PRODUCTION
1968

02 — Historical Context

HISTORICAL CONTEXT

According to Yamaha, it was highly popular in the United States, and in Japan it led to the creation of dedicated trail-riding courses and facilities.

1960s — Business bikes changed daily life while sports models set out for export markets — the decade Japan met the world.

03 — Design

DESIGN

Form, read through detail.

Yamaha DT-1 in the Barber Vintage Motorsports Museum
Photo: Mike Schinkel / CC BY 2.0

04 — Engine

ENGINE

Single

One cylinder: light, simple and characterful. Found everywhere from commuters to off-road machines and classics. A power stroke every revolution: light, simple and explosive — and, as emissions rules tightened, gradually retired from road machines.General description of the layout

Engine layoutSingle[1]
CycleTwo-stroke[1]
Displacement246 cc[1]
CoolingAir-cooled[1]
Max. power13.6 kW / 6,000 rpm[1]
Max. power18.5 PS / 6,000 rpm[1]
Max. torque22.6 N·m / 5,000 rpm[1]
Max. torque2.3 kgf·m / 5,000 rpm[1]

05 — Specifications

TECHNICAL SPECIFICATIONS

Every figure is sourced. Unverified values are not published.

Production1968[1]
Engine layoutSingle[1]
CycleTwo-stroke[1]
Displacement246 cc[1]
CoolingAir-cooled[1]
Max. power13.6 kW / 6,000 rpm[1]
Max. power18.5 PS / 6,000 rpm[1]
Max. torque22.6 N·m / 5,000 rpm[1]
Max. torque2.3 kgf·m / 5,000 rpm[1]
Yamaha DT-1 in the Barber Vintage Motorsports Museum
Photo: Mike Schinkel / CC BY 2.0

06 — Generations

GENERATION HISTORY

19631983

DT-11968–

Generations, model years and market variants (Model → Generation → Variant) are added as they are verified.

07 — Cultural Context

CULTURAL CONTEXT

08 — On Film

ON FILM

Quoted from official channels

09 — Gallery

GALLERY

RELATED MOTORCYCLES

10

11 — Sources

SOURCES

  1. [1]1968 DT-1 - Communication Plaza CollectionYamaha Motor Co., Ltd. · museum · accessed 2026-09-26
  2. [2]Yamaha Motor History - Product History (Motorcycles / Commuter Vehicles)Yamaha Motor Co., Ltd. · manufacturer · accessed 2026-09-26

12 — Image Credits

PHOTO CREDITS